Synthesis and physicochemical characterization of pigments based on molybdenum «ZnO-MoO3: Co2+»

H. Lakhlifi (1) , Mohamed Benchikhi (1) , Rachida El Ouatib (1) , Lahcen Er-Rakho (1) , Sophie Guillemet (2) , Bernard Durand (2)

1 Laboratoire de Physico-Chimie des Matériaux Inorganiques
2 CIRIMAT - Centre interuniversitaire de recherche et d'ingenierie des matériaux

MolybdatesZn1-xCoxMoO4(0≤ x ≤0.3) were elaborated by the Sol-Gel method with pH=3.The results obtained by DRX show a single-phase domain startingfrom 500°C for x ≤ 0.3 isostructural to ZnMoO4.The powder ofZn0.7Co0.3MoO4treated at 500°C and 700°C is formed by nano-sized primary crystallitesof size between 80 and 160nm. The colorimetric parameters (L a* b*) of powders obtained at 700°C present adegree of high bluing.

Mots clés: Morphology; Pigment; Molybdate; Sol–gel; Nanometric; Chromophore

Domaines: Matériaux

H. Lakhlifi, Mohamed Benchikhi, Rachida El Ouatib, Lahcen Er-Rakho, Sophie Guillemet, et al.. Synthesis and physicochemical characterization of pigments based on molybdenum «ZnO-MoO3: Co2+». Journal of Materials and Environmental Science , 2015, 6, pp.3465-3469. ⟨hal-02091210⟩